Where a petition for leave to appeal from a magistrates' court conviction has been refused by the high court and special leave is granted by the Supreme Court of Appeal, the SCA's jurisdiction is limited to determining whether the high court erred in refusing leave to appeal, not to hear the appeal on the merits. The test for reasonable prospects of success requires the appellant to show a sound, rational basis that a court of appeal could reasonably arrive at a conclusion different to that of the trial court - more than mere possibility, arguability, or that the case is not hopeless. There must be a realistic chance of success. In assessing identification evidence, courts must consider the totality of the evidence including corroboration, the reliability of observations given proximity and opportunity to observe, and whether the accused's own version places them at the scene and corroborates aspects of the complainant's account. A conviction can be sustained on the evidence of a single witness if that evidence is credible, reliable and corroborated on material aspects.